power-innovation via Amazon offers its Maxboost Atomic Air 2,200mAh iPhone 5 Battery Case in White bundled with its Maxboost Fusion 2,000mAh iPhone 5 Battery Case in White/Red for $139.90. At final checkout, it drops to $79.90. (Click the first "Add Both To Cart" under special offers to see this price.) With free shipping, that's $45 under the lowest total price we could find for these items separately elsewhere. (For further comparison, we saw the Atomic Air case for $35 shipped last week.) The Atomic Air has a 2,200mAh battery, while the Fusion has a 2,000mAh battery. Both cases feature a Lightning connector, microUSB input, and LED battery level indicator.